Is there a public exploit for CVE-2026-99264?

No public exploit for CVE-2026-99264 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

What does CVE-2026-99264 affect?

CVE-2026-99264 affects Linux Linux.

— Unscored

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't retry recv on uncommitted buffers Commit…

CVE-2026-99264

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't retry recv on uncommitted buffers Commit 41b70df5b38b ("iouring/net: commit partial buffers on retry") commits ring provided buffers when a receive is going to be retried after a partial transfer, so that another request using the same buffer group can't be handed the memory the first one keeps receiving into. It commits the number of bytes received so far. That does the job for a single buffer which is consumed as a whole, but the request hangs on to all it has mapped: For a buffer ring with IOUPBUFRINGINC only these bytes are consumed. The rest of the buffer stays at the head of the ring. For a bundle only the buffers which hold these bytes are consumed, the others that were peeked stay in the ring. In both cases the next receive with that buffer group gets memory that the retried request is still going to write to, and whoever comes last overwrites the data of the other. What the retry fills isn't committed at all, as the buffer list isn't known any more at that point. So the kernel hands it out again later on, while the CQE tells the application that it was used, and for an incremental…

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 3 November 2026
Last updated: 3 November 2026
Affected: Linux · Linux
Assigner: Linux

At the source

EUVD (ENISA)

References

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